Sprayer with agitator



March 5, 1940. H, E BRANDT 2,192,256

sPRAYER WITH AGITATOR Filed May 21, 19:58 s sheets-sheet 1 March 5,1940. l H E BRANDT v2,192,256

SPRAYER WITH AGITATOR Filed May 21, 193s c, sheets-.sheet 2 March 5,1940. H. E. BRANDT SPRAYER WITH AGITATOR Filed May 2l, 1938 3Sheets-Sheet 3 filer/745A Patented Mar. 5, 1.940 y l Y.

UNITED vSTATES PATENT CFFICE 1 SPRAYER WITH AGITATOR Henry E. Brandt,North St. Paul, Minn. t Application May 21, 193s, `serial Nc. 209,302

" 5 claims. (ci. 299-97) This invention relates to a spraying device andReferring tothe drawings a sprayer device vis While the features of theinvention might be apshown comprising a container IIJ. While lthis pliedto sprayers of different types, the invention container might takevarious forms, in the emis illustrated in a sprayer known as-theknapsack bodiment of the invention -illustratedit is shown 5 type. Sucha sprayer comprises a container as of elongated substantially ellipticalformin 5 adapted to be carried on the back of the operator horizontalcross section having a rear side Illa of and supported by straps so thatthe hands of convex form curved about a vertical axis anda the operatorare free for operating said sprayer. front side Ib which has a concavesurface curved It is an object of` this invention to provide aboutavertical axis. The ends of said container such a. sprayer having anagitating means for are shown as curved so that in cross section the 10the liquid of simple and eicient construction. container might be saidto be of bean or kidney Itis a further object ofthe invention toproshape. It is thus seen that the container is of vide a sprayer of theknapsack type having a con; greater width than thickness. A bottommember tainer of greater width than `thickness andan Ilextendsacrosssaid container having an upagitating means for the liquidcomprising spaced turned flange I In, secured to the walls thereof in 1Uoscillatable blades mounted in said container. any 4Suitable manner esby Welding 0r Soldering- Itis another object of the invention to provideA casing i2 shown as of cylindrical form is sea sprayer having a simpleand efficient construccured at its `bottom to the bottom l Isubstantially i tion of screening means for the liquid to be centrallythereof, Casing l2 having a'closed t0nA sprayed. and a chamber thereinforming aliquid pressure 26? It is also an object of the invention toprovide Chamber. A Small upstanding casing I3 is .diS-

v a sprayer comprising a container of elongated DOSed et the bOttOrn 0fCasing l2 having an einer` form in horizontal cross section having ahinge` ture I300 in its top adapted et times t0 be GlOSed `cover at itstop and 'a novel handle means for by a bell Valve member I4 normallyresting Ori e said cover. i v valve plug I5 secured in casing I3 andhaving an 25.

It is still another object of the invention to proaperture therethroughnormally closed by the vide a sprayer comprising a container adaptedballI4 which rests on member I5. The bottom to be carried on the back ofthe operator having member l5 0f Casing l2 eXtendS beyond Seid` a, platesecured to its rear side and spaced from Casing-end downwardly, the Semehaving a flange said rear side, said plate having depressions i560Secured t0 a flange lla 0f a member l1. 30'" therein for accommodatingportions of the op- Flanges |661 and Haare Secured together by a eratorsbody. plurality of headed screws i9, the outer edgeof These and otherobjects and advantages of the a diaphragm 20 being diSpOSed andSeCuredbeinvention will be fully set forth in the following tween saidflanges. Seid diaphragm will be description made in connection with theaccom- InaJde 0f any Suitable ileXible material and a 35 panyingdrawings in which like reference char- Chamber iS thus formed beneaththe bOttOrn acters 4refer to similar parts throughout the sevmember l5and ebOVe Seid diaphragm An inlet eralv views and in which; means isprovided comprising an apertured plate I Fig. 1 is a View infrontelevation of the device; 2| on which rests aball valve 22 normallyAclosing 4.0` Fig. 2isahorizontal section taken substantially theaperture therein- A plug 23 is Secured in 40 on line 2 2 of rig. s asindicated Vby the arrow; lbottom member Il above plete 2l having an Fig.3 is a vertical section taken substantially eleertilre diSpOSedCentrally therein Vand extendon line 3 3 of Fig, 6 as indicated by theHOV/5;. ing therethrough adapted to be closed at .times Fig. 4 is a viewin side elevation of the device by ball member' 22- Ari Operating IneensiS prO- 'as seen vfrom the right of Fig. 1; vided for diaphragm 2ucomprising a member 45:1

Fig. 5 is a perspective View of portions of the` 24 having a reducedupwardly extending central agitator mechanism, said portions being shownin Dertien eXtendIig thrOugh e D12-te member 25 disassembled position;of inverted cup formation having a `curved por- Fig. 6 is a verticalsection taken substantially tiOn engaging the 10Wer Side 0f Seiddiaphragm-y on une 5 6 of Fig, 3 as indicated by the arrows; A washer 21engages the upper side of said dia-f 5o' Fig. 7 is a bottom plan View ofthe device; phragm and is held in place by a nut 28 threaded f Fig.` 8is a view in elevation showing a modionto the reduced portion of member24. Member iication; and 24 has a Cylindrical recess in its lower end,the

v Fig. `9 is a horizontal section on line 9--9 of upper closed portionofwhich is semi-spherical llili Fig. 8. and in which is disposed a ball 29carriedon a 56- Y'with the other.

l0 with cover 12 swung open'.- Saidv cover can convenientlyy be-liftedand swung to open positionby moving clasp 13 a short distance andlifting the cover with the ngers by engaging sup- 'iplementary handle'16; The liquid to be sprayed will'pass through screen 'I8 so that nolarge particles will enter container I0. In the spraying operation theoperator holds the spray pipe and nozzle with one hand and oscillateshandle 38 Handlev 38 can be disposed in either of the openings Sla. inshaft 3l and the discharge conduit 42 can be connected to either of theoutlets 4I. opposite the outlet. The device is thus adapted to right orleft handed operators and any operator can change the handle for rest orvariation. The oscillation of handle 38 oscillates shaft 3l anddiaphragm 2U is reciprocated by member 24. Liquid is drawn throughvscreen 44 which will be of quite ne mesh through the inlet valve 23 andthis liquid will be forced upwardly past valve I4` into the chamber ofcasing l2. Said chamber forms a liquid pressure chamber with air in thetop thereof and when the pressure becomes sufficient, liquid will beforced out through the conduit 39 to which conduit 42 is connected. Theother outlet 4I will be closed by a suitable plug. As shaft 3l isoscillated rod 60 forming a crank arm is oscillated and the crank arm onrod 53 is thus oscillated by link 58.r This oscillates shaft 41 so thatblades 49 are oscillated in the container and the liquid therein isstirred up and agitated. It will be seen that shaft 41 and plates 49 maybe removed by withdrawing key 54 and then removing rod 53 by moving thesame outwardly through member 55. The escape of any liquid around rod3i) is prevented by the packing in member 58. Screen 44 can readily beremoved by lifting member 45. Said screen can. be easily replaced byplacing its lower end over plug 23 between the same and container I0.The liquid in said container is often cold and the container being ofmetal is thus also cold and this produces a discomfort when directlyagainst the back of the operator. Plate t34 being spaced from containerI0 for most of its Width provides for an insulating layer of air betweenthe same and container ID so that the cold effect of the container iseliminated. The auxiliary handle 16 for lifting the lid is quite usefuland convenient.

In Figs. 8 and 9 a modified structure is shown for holding screen 44 inplace. Instead of having the screen open at its top and engaged by theclip 45, said screen is closed at its upper end and is held by the arms82 which are resilient and curved to embrace said screen. Said arms aresecured to the casing I2. It will be seen that screen 44 can merely bepushed in between arms 82 to be held rmly in place thereby. Said screenis then easily and quickly removable by merely withdrawing the same fromarms 82.

From the'above description it will be seen that I have produced asprayer with some very advantageous features or improvements. Theconstruction is comparatively simple and the parts have been arrangedfor convenient assembly and efficient operation. The device has beenamply demonstrated in actual practice, found to be very successful andefficient and is being commercially made.

This application discloses improvements upon the structure disclosed andclaimed in my copending application S. N. 157,942, filed `August Thehandle will be on the sidev 7, 1937. This application has now maturedinto Patent No. 2,162,057, granted June 13, 1939.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions ofthe parts, withoutdeparting from the scope of applicants invention, `which generallystated, consists in a device capable of carrying out the objects aboveset forth, in the parts and combinations of parts disclosed and definedin the appended claims.

What is claimed is:

1. A sprayer ofthe knapsack type having in combination, a container ofgreater Width than thickness, a pump cylinder upstanding adjacent thecenter of said container, an agitator for the liquid in said containerhaving spaced agitating members at either side of said cylinder, a shaftcarrying'said members and extending horizontally across saidcontainerparallel to the long dimension thereof and journalled at thesides thereof and means for actuating said shaft.

2. A sprayer of the knapsack type having in combination, a container ofgreater width than thickness, a pump cylinder in said containerupstanding substantially centrally thereof, a shaft extendinghorizontally across said container and journalled at the sides thereofextending along the long dimension of said container, spaced bladessecured adjacent each end of said shaft at each side of said pumpcylinder and extending ydownwardly therefrom in diverging planesparallel to said shaft, and means for oscillating said shaft and bladesfor agitating the liquid in said container.

3. A sprayer of the knapsack type having in combination, a container ofgreater width than thickness, a pump cylinder upstanding substantiallycentrally of said container, a shaft extending across the long dimensionof said container and journalled at the sides thereof said shaftextending about said cylinder, agitating means within said containercarried by said shaft comprising spaced pairs of blades divergingdownwardly from said shaft, means for discharging liquid from saidcontainer including a second shaft extendingparallel to said firstmentioned shaft and projecting at one side of said container, the samehaving means for connection of an operating handle at the outside ofsaid container,`

an arm secured to said first mentioned shaft outside of said container,a second arm secured to said second shaft between said means and theside of said container and means connecting said arms for oscillatingsaid first mentioned shaft.

4. A sprayer having in combination, a container, a pump cylinderdisposed centrally in said container, a shaft extending transversely ofsaid container and journalled at the sides thereof, spaced pairs ofagitator blades depending from said shaft and disposed respectively ateach side of said pump cylinder, the blades of `said pairs divergingtoward the bottom of said container.

5. A sprayer of the knapsack type having in combination, a container ofgreater width than thickness, a pump cylinder disposed substantiallycentrally-of said container, a shaft extending across the long dimensionof said container and about said pump cylinder, a bearing at one innerside of said container in which one end of said shaft is journaled,agitating means Within said container carried by and depending from saidshaft, means for discharging liquid from said container including asecond shaft extending parallel to said first mentioned shaft andprojecting at one side of said container, the same having 10` containerand means connecting said arms for oscillating saidv firstmentionedshaft from saidv second shaft, saidY last mentioned means beingJ movableWith said rst mentioned 'arm away' from said container so that whensaidv coupling is disconnected said arm maybe moved from said'` couplingand said first mentioned` shaft, and agitatingmeans may be removed fromsaid con. tainer.

HENRY E.V BRANDT.

